funny-i just noticed i never really directly answered your original question-----the 3M 90 works great.I had never used a spray adhesive ever in my life before.I was surprised at how good it worked and held,even on the underside of lids where you have the stress of bending the carpet.-Just be careful what you get any residual on.When its freshly wet you can wipe away but after just a few seconds it will start to get tacky at which point you need something like min spirits ( or even carbeurator spray)to break it down and wipe away.Its not a messy job-just sayin...